[Haskell-cafe] How to get glyph outline from ttf font.

Tillmann Vogt Tillmann.Vogt at rwth-aachen.de
Sat Apr 4 11:33:57 EDT 2009

Dmitry V'yal schrieb:
>     Greetings. I'm trying to render some glyphs from ttf font to svg 
> image using gtk2hs cairo binding. Since I can find nothing appropriate 
> in gtk2hs API,  I decided to draw outlines with bezier curves myself. 
> But how to get them out of font? As far as I know, freetype library is 
> capable of extracting outlines, but is there any haskell binding for it 
> which supports this functionality?
>     Here [1] one such lib was mentioned, but it wasn't availible online 
> that time. Have situation changed today?
> Thanks in advance
> [1] 
> http://www.nabble.com/Re%3A-Rendering-TTF-fonts-in-Haskell-and-OpenGL-p15635659.html 
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Hi Dmitry,

I cannot help you directly with freetype. But I have developped a 
library that parses the svg-font format (this is not svg). Since 
svg-font is XML it is much easier to parse than ttf. There is also a 
program called fontforge that can be used to convert nearly every format 
into svg-font.

The only problem is that currently triangulation has some bugs and is 
only O(n^2), the algorithm for deleting holes is not finished, and 
memoization isn't implemented. Should I upload the work although it is 
not finished?

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